Hi Ray,
Please tell us which version of Roon you’re using. Or can we assume that you have the latest and that you know about the recent changes which ‘divided’ Roon’s architecture into what could be considered client-server.
Does your Roon installation reflect this?
If so, then you may need specifically and manually to start the Roon server on your Mac Studio.
Please post a screen grab of exactly what you see at the splash screen you refer to.